40 lines
966 B
C
40 lines
966 B
C
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/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; version 2 of
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* the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _CPU_INTEL_TURBO_H
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#define _CPU_INTEL_TURBO_H
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#define CPUID_LEAF_PM 6
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#define PM_CAP_TURBO_MODE (1 << 1)
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#define MSR_IA32_MISC_ENABLES 0x1a0
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#define H_MISC_DISABLE_TURBO (1 << 6)
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enum {
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TURBO_UNKNOWN,
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TURBO_UNAVAILABLE,
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TURBO_DISABLED,
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TURBO_ENABLED,
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};
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/* Return current turbo state */
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int get_turbo_state(void);
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/* Enable turbo */
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void enable_turbo(void);
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#endif
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